Berserk

This one: Gain the Berserk ability: Requires Cat Form, Bear Form, Dire Bear….

• Berserk · spell 26662 · Increases the caster's attack speed by 150% and the Physical damage…
• Berserk · spell 27680 · Increases the caster's movement speed by 150% and the Physical…
• Berserk · spell 368388 · Increases the caster's attack speed by 150% and all damage it deals…
• Berserk · spell 417141 · Requires Cat Form, Bear Form, Dire Bear Form Causes your Primal Bite… · Druid talent
• Berserk · spell 442211 · Lasts 30 sec. Requires Bear Form, Cat Form, or Dire Bear Form to…
• Berserk · spell 1289125 · Increases the caster's attack speed by 150% and the Physical damage…

Values as each build had them, not tested in play.

1. Forever 1.60.1.69913vs Era 1.15.9.69722
   Description, Era 1.15.9.69722

   Gain the Berserk ability: When activated, this ability causes your Mangle (Bear) and Lacerate abilities to hit up to 4 targets, Lacerate to cost no Rage, Mangle (Bear) to have no cooldown, and reduces the energy cost of all your Cat Form abilities by 49%. Lasts 15 sec. Requires Bear Form, Cat Form, or Dire Bear Form to activate. Clears the effect of Fear and makes you immune to Fear for the duration.

   Description, Forever 1.60.1.69913

   Gain the Berserk ability: Requires Cat Form, Bear Form, Dire Bear Form Causes your Mangle ability to strike up to 3 targets, removes its cooldown, and increases the critical strike chance of your Combo Point-generating abilities by 100%. Clears and grants immunity to Fear effects for the duration. Lasts 15 sec.

2. Forever 1.60.1.70009vs Forever 1.60.1.69977
   Description, Forever 1.60.1.69977

   Gain the Berserk ability: Requires Cat Form, Bear Form, Dire Bear Form Causes your Mangle ability to strike up to 3 targets, removes its cooldown, and increases the critical strike chance of your Combo Point-generating abilities by 100%. Clears and grants immunity to Fear effects for the duration. Lasts 15 sec.

   Description, Forever 1.60.1.70009

   Gain the Berserk ability: Requires Cat Form, Bear Form, Dire Bear Form Causes your Primal Bite ability to strike up to 3 targets, removes its cooldown, and increases the critical strike chance of your Combo Point-generating abilities by 100%. Clears and grants immunity to Fear effects for the duration. Lasts 15 sec.